Ceboidea

She apag 'sy far-chynney Ceboidea eh apag y Teihill Noa.  Shoh ny queig kynneeyn dy 'ar-gheiney ta ry-akin ayns America Yiass as America Veanagh.  She far-chynney ynrican er mayrn y pharva-oardagh Platyrrhini, as dy cadjin ta "Platyrrhini" çheet er ny h-apagyn shoh.  

 Troyn 
Ta apagyn ny Shenn Seihill beg: She Marmaseen Druaie y dooie sloo, 14-16km er lhiurid voish kione dys boyn, mysh 120 dys 190g er trimmid; she Brachyteles arachnoides y dooie smoo, mysh 55-70km er lhiurid, as wheesh as 15kg er trimmid.  T'ad geddyr-scarrey ad veih Cercopithecidae er bun y stroin oc, as tuill stronney lhiasragh echey.  Ta fammanyn yn-ghreimmee oc myrgeddin, anchasley rish fammanyn neughreimmee ny Cercopithecidae.

Cha nel shilley tree-chromaidagh ec Ceboidea firrinagh, er lhimmey jeh agapyn yllagh 'sy ghenus Alouatta.  Ta shilley daah ayns Ceboidea croghey er un ghien er y chroymasoom X dys jannoo daahghyn nod freggyragh da sollys tonn veanagh as liauyr.  Ta daahghyn elley freggyragh da sollys tonn ghiare.  Myr shen, ta jargaght scarrey daa-hroagh ec fir as ec mraane homozygous (shilley daa-chroamatagh).  Ta daa allele ny gienntag cheddin ec mraane heterozygous as foddee ad jannoo daahghyn ta freggyragh da daa horçh dy hollys tonn veanagh-liauyr, chammah's sollys tonn yiare.  Myr shen, ta eddyr-scarrey tree-hroagh yn-yannoo oc (shilley tree-chroamatagh).

Ta anchaslys elley ayn bentyn rish ny feeacklyn.  Ta daa 'eeackle lieh-chooylloo yeig ec Ceboidea, cosoylit rish hoght ec Cercopithecidae.  Myr shen, ta formley feeacklagh  oc.  She apagyn 'sy chynney Atelidae ad ny far-gheiney ynrickan as famman yn-ghreimmee oc.  Anchasley rish sleih as apagyn ny Shenn Seihill, cha nel ordaag hoil noi oc er lhimmey jeh Cebidae ennagh..

Imraaghyn